Astronomers discovered exoplanet WD 1856 b closely orbiting a white dwarf, offering insights into planetary survival after a star's violent demise.

"It's like using a time machine to peer into the distant future of our solar system."

A Jupiter-size exoplanet orbiting a dead star baffled astronomers. But the planet named WD 1856 b could preview the fate of our own solar system when the sun dies.